>6ts4A (A:) observed residues (from ATOM records)
ivggtasvrgewpwqvtlhttsptqrhlcggsiignqwiltaahcfygvespkilrvysg
ilnqseikedtsffgvqeiiihdqykmaesgydiallklettvnytdsqrpislpskgdr
nviytdcwvtgwgyrklrdkiqntlqkakiplvtneecqkryrghkithkmicagyregg
kdackgdaggplsckhnevwhlvgitswgegcaqrerpgvytnvveyvdwilektq